Home / 1,051,805.80-1,577,708.70-386,871.40

Finding the Fourth Proportional to 1,051,805.80, 1,577,708.70 and 386,871.40

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Solution

The fourth proportional to 1,051,805.80, 1,577,708.70 and 386,871.40 is: 580,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,805.80 : 1,577,708.70 = 386,871.40 : x
  2. Step 2: Convert to fraction form
    1,051,805.80/1,577,708.70 = 386,871.40/x
  3. Step 3: Cross multiply
    1,051,805.80x = 1,577,708.70 × 386,871.40
  4. Step 4: Simplify right side
    1,051,805.80x = 610,370,373,561.18
  5. Step 5: Solve for x
    x = 610,370,373,561.18/1,051,805.80
  6. Step 6: Final answer
    x = 580,307.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.